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| author | Bart Van Assche <bart.vanassche@wdc.com> | 2017-10-19 19:00:48 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-10-30 20:28:10 +0100 |
| commit | 4e9b6f20828ac880dbc1fa2fdbafae779473d1af (patch) | |
| tree | 9cac5adedafdea4f678947001caa69cd7de123eb /block/blk-timeout.c | |
| parent | mq-deadline: add 'deadline' as a name alias (diff) | |
| download | linux-4e9b6f20828ac880dbc1fa2fdbafae779473d1af.tar.xz linux-4e9b6f20828ac880dbc1fa2fdbafae779473d1af.zip | |
block: Fix a race between blk_cleanup_queue() and timeout handling
Make sure that if the timeout timer fires after a queue has been
marked "dying" that the affected requests are finished.
Reported-by: chenxiang (M) <chenxiang66@hisilicon.com>
Fixes: commit 287922eb0b18 ("block: defer timeouts to a workqueue")
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Tested-by: chenxiang (M) <chenxiang66@hisilicon.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-timeout.c')
| -rw-r--r-- | block/blk-timeout.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/block/blk-timeout.c b/block/blk-timeout.c index e3e9c9771d36..764ecf9aeb30 100644 --- a/block/blk-timeout.c +++ b/block/blk-timeout.c @@ -134,8 +134,6 @@ void blk_timeout_work(struct work_struct *work) struct request *rq, *tmp; int next_set = 0; - if (blk_queue_enter(q, true)) - return; spin_lock_irqsave(q->queue_lock, flags); list_for_each_entry_safe(rq, tmp, &q->timeout_list, timeout_list) @@ -145,7 +143,6 @@ void blk_timeout_work(struct work_struct *work) mod_timer(&q->timeout, round_jiffies_up(next)); spin_unlock_irqrestore(q->queue_lock, flags); - blk_queue_exit(q); } /** |